The very fabric of reality seemed to unravel as Finn's final strike pierced through Eldralis, the entity's form shattering like a cosmic mirror. The dream world trembled, its foundations cracking under the weight of the battle's intensity. Crystalline fragments of the castle's architecture splintered and shattered, cascading like a mesmerizing rain of stardust as the chamber began to crumble.
Finn's breath was ragged, his blue dream sword still aglow with the ethereal power he had channeled. He cast a triumphant gaze upon the scene of chaos he had wrought, the remnants of his cosmic clash strewn across the dream-scape like a tapestry of shattered dreams. With a final surge of strength, he let out a fierce roar, his victory cry echoing through the disintegrating chamber.